Strength and Flexibility Self-Assessment and Subsequent Training Injuries Among Runners of the New York City Marathon

Area of Science:

• Sports Medicine
• Exercise Physiology
• Injury Prevention

Background:

• Running-related overuse injuries are common among distance runners.
• Identifying modifiable risk factors like strength and flexibility is crucial for prevention.

Purpose of the Study:

• To determine which strength and flexibility measures are associated with the risk of running-related overuse injuries.
• To identify specific tests that can predict injury risk in runners.

Main Methods:

• Prospective observational study analyzing a cohort of 867 runners preparing for the 2019 New York City Marathon.
• Baseline strength and flexibility self-assessments were conducted 16 weeks pre-marathon.
• Injury data was collected via surveys at multiple time points before the race.

Main Results:

• 36.1% of runners sustained a running-related overuse injury.
• The single-leg glute bridge test was significantly associated with reduced injury risk.
• Runners holding the single-leg glute bridge for 20-29 seconds on their weaker side had a 64% lower risk of injury.
• Runners holding for 30+ seconds had a 49% lower risk of injury.

Conclusions:

• Enhanced strength in hip abductor muscles, as indicated by the single-leg glute bridge test, may reduce overuse injury risk in runners.
• Targeted strength training programs focusing on these muscle groups could benefit distance runners.
• Further rigorous research is recommended to confirm these findings.